Ceph » CephFS

on what basis is the pool id generated? There are no existing pools. So shouldn't the count start with 0 or 1?

Also in the below output the metadata_pool is given "0" id even when though no pools have been created yet. Shouldn't the field be blank like in data_pools:-

ceph mds dump
dumped fsmap epoch 1
fs_name cephfs
epoch 1
flags 0
created 0.000000
modified 0.000000
tableserver 0
root 0
session_timeout 0
session_autoclose 0
max_file_size 0
last_failure 0
last_failure_osd_epoch 0
compat compat={},rocompat={},incompat={}
max_mds 0
in
up {}
failed
damaged
stopped
data_pools
metadata_pool 0
inline_data disabled

ceph fs ls
No filesystems enabled

ceph osd pool stats
pool rbd id 0
nothing is going on

ceph osd pool stats
there are no pools!

ems@rack2-client-3:~$ ceph mds dump
dumped fsmap epoch 3
fs_name cephfs
epoch 3
flags 0
created 0.000000
modified 0.000000
tableserver 0
root 0
session_timeout 0
session_autoclose 0
max_file_size 0
last_failure 0
last_failure_osd_epoch 0
compat compat={},rocompat={},incompat={}
max_mds 0
in
up {}
failed
damaged
stopped
data_pools
metadata_pool 0
inline_data disabled
ems@rack2-client-3:~$

Rohith Radhakrishnan wrote:

Ceph mds dump shows metadata_pool id as 0. When no FS is present, then metadata_pool id should be left blank.

ceph fs ls
name: cephfs, metadata pool: cephfs_metadata, data pools: [cephfs_data ]

ceph mds dump:-
dumped fsmap epoch 10
fs_name cephfs
failed
damaged
stopped
data_pools 1
metadata_pool 2
inline_data disabled
14775: 10.242.42.220:6802/296988 'mds3' mds.0.9 up:active seq 24

Hi Xiaoxi,

You are right about the bug. The metadata_pool field should be left blank. I have changed the description as required. But not sure how to get it to the top...